DAYCO Belt Tensioner: Self-Adjusting Belt Tensioner, 89240, 1 Pulleys
The DAYCO Self-Adjusting Belt Tensioner, model 89240, is a vehicle belt tensioner with 1 pulley and a 3 1/2 in outside diameter. This OEM-spec part is designed for automatic belt tension adjustment in automotive…
SKU 3G-OTH-486456
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Product Description
The DAYCO Self-Adjusting Belt Tensioner, model 89240, is a vehicle belt tensioner with 1 pulley and a 3 1/2 in outside diameter. This OEM-spec part is designed for automatic belt tension adjustment in automotive applications.
Frequently Asked Questions
What is the DAYCO 89240 belt tensioner used for?
The DAYCO 89240 self-adjusting belt tensioner automatically maintains proper tension on serpentine or accessory drive belts in automotive engines. It prevents belt slippage, reduces noise, and extends belt life across passenger cars and light trucks.
What are the specifications of the DAYCO 89240 belt tensioner?
The DAYCO 89240 is a self-adjusting belt tensioner with 1 pulley and a 3 1/2 in outside diameter. It is an OEM-spec replacement part designed for automatic belt tension adjustment. The manufacturer part number is 89240.
Where to buy the DAYCO 89240 belt tensioner worldwide?
3G Electric supplies the DAYCO 89240 belt tensioner to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this OEM-spec tensioner for your application.
How to install the DAYCO 89240 self-adjusting belt tensioner?
Installation typically involves removing the old tensioner, aligning the new DAYCO 89240 unit with the mounting holes, and torquing the bolts to manufacturer specifications. Always consult the vehicle service manual for exact procedures and ensure the belt routing matches the original setup.
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Common applications for DAYCODAYCO Products
3G Electric supplies DAYCO vehicle self-adjusting belt tensioners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









